21760164

素因数分解:

$2^2\times 3^5\times {\mathrm{61}}^1\times {\mathrm{367}}^1$

素因数の和:447

約数の個数: 72

約数和(自身を含む): 58135168

約数和(自身を除く): 36375004

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 61, 81, 108, 122, 162, 183, 243, 244, 324, 366, 367, 486, 549, 732, 734, 972, 1098, 1101, 1468, 1647, 2196, 2202, 3294, 3303, 4404, 4941, 6588, 6606, 9882, 9909, 13212, 14823, 19764, 19818, 22387, 29646, 29727, 39636, 44774, 59292, 59454, 67161, 89181, 89548, 118908, 134322, 178362, 201483, 268644, 356724, 402966, 604449, 805932, 1208898, 1813347, 2417796, 3626694, 5440041, 7253388, 10880082, 21760164]

約数ペア:

[(1, 21760164), (2, 10880082), (3, 7253388), (4, 5440041), (6, 3626694), (9, 2417796), (12, 1813347), (18, 1208898), (27, 805932), (36, 604449), (54, 402966), (61, 356724), (81, 268644), (108, 201483), (122, 178362), (162, 134322), (183, 118908), (243, 89548), (244, 89181), (324, 67161), (366, 59454), (367, 59292), (486, 44774), (549, 39636), (732, 29727), (734, 29646), (972, 22387), (1098, 19818), (1101, 19764), (1468, 14823), (1647, 13212), (2196, 9909), (2202, 9882), (3294, 6606), (3303, 6588), (4404, 4941)]