20997725196

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{607}}^1\times {\mathrm{58831}}^1$

素因数の和:59459

約数の個数: 72

約数和(自身を含む): 57088690176

約数和(自身を除く): 36090964980

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 588, 607, 1214, 1821, 2428, 3642, 4249, 7284, 8498, 12747, 16996, 25494, 29743, 50988, 58831, 59486, 89229, 117662, 118972, 176493, 178458, 235324, 352986, 356916, 411817, 705972, 823634, 1235451, 1647268, 2470902, 2882719, 4941804, 5765438, 8648157, 11530876, 17296314, 34592628, 35710417, 71420834, 107131251, 142841668, 214262502, 249972919, 428525004, 499945838, 749918757, 999891676, 1499837514, 1749810433, 2999675028, 3499620866, 5249431299, 6999241732, 10498862598, 20997725196]

約数ペア:

[(1, 20997725196), (2, 10498862598), (3, 6999241732), (4, 5249431299), (6, 3499620866), (7, 2999675028), (12, 1749810433), (14, 1499837514), (21, 999891676), (28, 749918757), (42, 499945838), (49, 428525004), (84, 249972919), (98, 214262502), (147, 142841668), (196, 107131251), (294, 71420834), (588, 35710417), (607, 34592628), (1214, 17296314), (1821, 11530876), (2428, 8648157), (3642, 5765438), (4249, 4941804), (7284, 2882719), (8498, 2470902), (12747, 1647268), (16996, 1235451), (25494, 823634), (29743, 705972), (50988, 411817), (58831, 356916), (59486, 352986), (89229, 235324), (117662, 178458), (118972, 176493)]