20813779455

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{599}}^1\times {\mathrm{2221}}^1$

素因数の和:2984

約数の個数: 64

約数和(自身を含む): 38396160000

約数和(自身を除く): 17582380545

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 149, 447, 599, 745, 1043, 1797, 2221, 2235, 2995, 3129, 4193, 5215, 6663, 8985, 11105, 12579, 15547, 15645, 20965, 33315, 46641, 62895, 77735, 89251, 233205, 267753, 330929, 446255, 624757, 992787, 1330379, 1338765, 1654645, 1874271, 2316503, 3123785, 3991137, 4963935, 6651895, 6949509, 9312653, 9371355, 11582515, 19955685, 27937959, 34747545, 46563265, 139689795, 198226471, 594679413, 991132355, 1387585297, 2973397065, 4162755891, 6937926485, 20813779455]

約数ペア:

[(1, 20813779455), (3, 6937926485), (5, 4162755891), (7, 2973397065), (15, 1387585297), (21, 991132355), (35, 594679413), (105, 198226471), (149, 139689795), (447, 46563265), (599, 34747545), (745, 27937959), (1043, 19955685), (1797, 11582515), (2221, 9371355), (2235, 9312653), (2995, 6949509), (3129, 6651895), (4193, 4963935), (5215, 3991137), (6663, 3123785), (8985, 2316503), (11105, 1874271), (12579, 1654645), (15547, 1338765), (15645, 1330379), (20965, 992787), (33315, 624757), (46641, 446255), (62895, 330929), (77735, 267753), (89251, 233205)]