19849908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:257

約数の個数: 96

約数和(自身を含む): 54221440

約数和(自身を除く): 34371532

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 37, 38, 39, 52, 57, 74, 76, 78, 111, 114, 148, 156, 181, 222, 228, 247, 362, 444, 481, 494, 543, 703, 724, 741, 962, 988, 1086, 1406, 1443, 1482, 1924, 2109, 2172, 2353, 2812, 2886, 2964, 3439, 4218, 4706, 5772, 6697, 6878, 7059, 8436, 9139, 9412, 10317, 13394, 13756, 14118, 18278, 20091, 20634, 26788, 27417, 28236, 36556, 40182, 41268, 44707, 54834, 80364, 87061, 89414, 109668, 127243, 134121, 174122, 178828, 254486, 261183, 268242, 348244, 381729, 508972, 522366, 536484, 763458, 1044732, 1526916, 1654159, 3308318, 4962477, 6616636, 9924954, 19849908]

約数ペア:

[(1, 19849908), (2, 9924954), (3, 6616636), (4, 4962477), (6, 3308318), (12, 1654159), (13, 1526916), (19, 1044732), (26, 763458), (37, 536484), (38, 522366), (39, 508972), (52, 381729), (57, 348244), (74, 268242), (76, 261183), (78, 254486), (111, 178828), (114, 174122), (148, 134121), (156, 127243), (181, 109668), (222, 89414), (228, 87061), (247, 80364), (362, 54834), (444, 44707), (481, 41268), (494, 40182), (543, 36556), (703, 28236), (724, 27417), (741, 26788), (962, 20634), (988, 20091), (1086, 18278), (1406, 14118), (1443, 13756), (1482, 13394), (1924, 10317), (2109, 9412), (2172, 9139), (2353, 8436), (2812, 7059), (2886, 6878), (2964, 6697), (3439, 5772), (4218, 4706)]