21222396

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{331}}^1$

素因数の和:491

約数の個数: 72

約数和(自身を含む): 58369584

約数和(自身を除く): 37147188

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 137, 156, 234, 274, 331, 411, 468, 548, 662, 822, 993, 1233, 1324, 1644, 1781, 1986, 2466, 2979, 3562, 3972, 4303, 4932, 5343, 5958, 7124, 8606, 10686, 11916, 12909, 16029, 17212, 21372, 25818, 32058, 38727, 45347, 51636, 64116, 77454, 90694, 136041, 154908, 181388, 272082, 408123, 544164, 589511, 816246, 1179022, 1632492, 1768533, 2358044, 3537066, 5305599, 7074132, 10611198, 21222396]

約数ペア:

[(1, 21222396), (2, 10611198), (3, 7074132), (4, 5305599), (6, 3537066), (9, 2358044), (12, 1768533), (13, 1632492), (18, 1179022), (26, 816246), (36, 589511), (39, 544164), (52, 408123), (78, 272082), (117, 181388), (137, 154908), (156, 136041), (234, 90694), (274, 77454), (331, 64116), (411, 51636), (468, 45347), (548, 38727), (662, 32058), (822, 25818), (993, 21372), (1233, 17212), (1324, 16029), (1644, 12909), (1781, 11916), (1986, 10686), (2466, 8606), (2979, 7124), (3562, 5958), (3972, 5343), (4303, 4932)]