21312456

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:251

約数の個数: 96

約数和(自身を含む): 60328800

約数和(自身を除く): 39016344

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 41, 44, 66, 82, 88, 121, 123, 132, 164, 179, 242, 246, 264, 328, 358, 363, 451, 484, 492, 537, 716, 726, 902, 968, 984, 1074, 1353, 1432, 1452, 1804, 1969, 2148, 2706, 2904, 3608, 3938, 4296, 4961, 5412, 5907, 7339, 7876, 9922, 10824, 11814, 14678, 14883, 15752, 19844, 21659, 22017, 23628, 29356, 29766, 39688, 43318, 44034, 47256, 58712, 59532, 64977, 80729, 86636, 88068, 119064, 129954, 161458, 173272, 176136, 242187, 259908, 322916, 484374, 519816, 645832, 888019, 968748, 1776038, 1937496, 2664057, 3552076, 5328114, 7104152, 10656228, 21312456]

約数ペア:

[(1, 21312456), (2, 10656228), (3, 7104152), (4, 5328114), (6, 3552076), (8, 2664057), (11, 1937496), (12, 1776038), (22, 968748), (24, 888019), (33, 645832), (41, 519816), (44, 484374), (66, 322916), (82, 259908), (88, 242187), (121, 176136), (123, 173272), (132, 161458), (164, 129954), (179, 119064), (242, 88068), (246, 86636), (264, 80729), (328, 64977), (358, 59532), (363, 58712), (451, 47256), (484, 44034), (492, 43318), (537, 39688), (716, 29766), (726, 29356), (902, 23628), (968, 22017), (984, 21659), (1074, 19844), (1353, 15752), (1432, 14883), (1452, 14678), (1804, 11814), (1969, 10824), (2148, 9922), (2706, 7876), (2904, 7339), (3608, 5907), (3938, 5412), (4296, 4961)]