19687356

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 144

約数和(自身を含む): 58705920

約数和(自身を除く): 39018564

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 23, 26, 31, 36, 39, 46, 52, 59, 62, 69, 78, 92, 93, 117, 118, 124, 138, 156, 177, 186, 207, 234, 236, 276, 279, 299, 354, 372, 403, 414, 468, 531, 558, 598, 708, 713, 767, 806, 828, 897, 1062, 1116, 1196, 1209, 1357, 1426, 1534, 1612, 1794, 1829, 2124, 2139, 2301, 2418, 2691, 2714, 2852, 3068, 3588, 3627, 3658, 4071, 4278, 4602, 4836, 5382, 5428, 5487, 6417, 6903, 7254, 7316, 8142, 8556, 9204, 9269, 10764, 10974, 12213, 12834, 13806, 14508, 16284, 16461, 17641, 18538, 21948, 23777, 24426, 25668, 27612, 27807, 32922, 35282, 37076, 42067, 47554, 48852, 52923, 55614, 65844, 70564, 71331, 83421, 84134, 95108, 105846, 111228, 126201, 142662, 158769, 166842, 168268, 211692, 213993, 252402, 285324, 317538, 333684, 378603, 427986, 504804, 546871, 635076, 757206, 855972, 1093742, 1514412, 1640613, 2187484, 3281226, 4921839, 6562452, 9843678, 19687356]

約数ペア:

[(1, 19687356), (2, 9843678), (3, 6562452), (4, 4921839), (6, 3281226), (9, 2187484), (12, 1640613), (13, 1514412), (18, 1093742), (23, 855972), (26, 757206), (31, 635076), (36, 546871), (39, 504804), (46, 427986), (52, 378603), (59, 333684), (62, 317538), (69, 285324), (78, 252402), (92, 213993), (93, 211692), (117, 168268), (118, 166842), (124, 158769), (138, 142662), (156, 126201), (177, 111228), (186, 105846), (207, 95108), (234, 84134), (236, 83421), (276, 71331), (279, 70564), (299, 65844), (354, 55614), (372, 52923), (403, 48852), (414, 47554), (468, 42067), (531, 37076), (558, 35282), (598, 32922), (708, 27807), (713, 27612), (767, 25668), (806, 24426), (828, 23777), (897, 21948), (1062, 18538), (1116, 17641), (1196, 16461), (1209, 16284), (1357, 14508), (1426, 13806), (1534, 12834), (1612, 12213), (1794, 10974), (1829, 10764), (2124, 9269), (2139, 9204), (2301, 8556), (2418, 8142), (2691, 7316), (2714, 7254), (2852, 6903), (3068, 6417), (3588, 5487), (3627, 5428), (3658, 5382), (4071, 4836), (4278, 4602)]