21328524

素因数分解:

$2^2\times 3^2\times 7^2\times {\mathrm{107}}^1\times {\mathrm{113}}^1$

素因数の和:244

約数の個数: 108

約数和(自身を含む): 63862344

約数和(自身を除く): 42533820

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 49, 63, 84, 98, 107, 113, 126, 147, 196, 214, 226, 252, 294, 321, 339, 428, 441, 452, 588, 642, 678, 749, 791, 882, 963, 1017, 1284, 1356, 1498, 1582, 1764, 1926, 2034, 2247, 2373, 2996, 3164, 3852, 4068, 4494, 4746, 5243, 5537, 6741, 7119, 8988, 9492, 10486, 11074, 12091, 13482, 14238, 15729, 16611, 20972, 22148, 24182, 26964, 28476, 31458, 33222, 36273, 47187, 48364, 49833, 62916, 66444, 72546, 84637, 94374, 99666, 108819, 145092, 169274, 188748, 199332, 217638, 253911, 338548, 435276, 507822, 592459, 761733, 1015644, 1184918, 1523466, 1777377, 2369836, 3046932, 3554754, 5332131, 7109508, 10664262, 21328524]

約数ペア:

[(1, 21328524), (2, 10664262), (3, 7109508), (4, 5332131), (6, 3554754), (7, 3046932), (9, 2369836), (12, 1777377), (14, 1523466), (18, 1184918), (21, 1015644), (28, 761733), (36, 592459), (42, 507822), (49, 435276), (63, 338548), (84, 253911), (98, 217638), (107, 199332), (113, 188748), (126, 169274), (147, 145092), (196, 108819), (214, 99666), (226, 94374), (252, 84637), (294, 72546), (321, 66444), (339, 62916), (428, 49833), (441, 48364), (452, 47187), (588, 36273), (642, 33222), (678, 31458), (749, 28476), (791, 26964), (882, 24182), (963, 22148), (1017, 20972), (1284, 16611), (1356, 15729), (1498, 14238), (1582, 13482), (1764, 12091), (1926, 11074), (2034, 10486), (2247, 9492), (2373, 8988), (2996, 7119), (3164, 6741), (3852, 5537), (4068, 5243), (4494, 4746)]