21441966

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:425

約数の個数: 64

約数和(自身を含む): 53319168

約数和(自身を除く): 31877202

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 173, 182, 227, 273, 346, 454, 519, 546, 681, 1038, 1211, 1362, 1589, 2249, 2422, 2951, 3178, 3633, 4498, 4767, 5902, 6747, 7266, 8853, 9534, 13494, 15743, 17706, 20657, 31486, 39271, 41314, 47229, 61971, 78542, 94458, 117813, 123942, 235626, 274897, 510523, 549794, 824691, 1021046, 1531569, 1649382, 3063138, 3573661, 7147322, 10720983, 21441966]

約数ペア:

[(1, 21441966), (2, 10720983), (3, 7147322), (6, 3573661), (7, 3063138), (13, 1649382), (14, 1531569), (21, 1021046), (26, 824691), (39, 549794), (42, 510523), (78, 274897), (91, 235626), (173, 123942), (182, 117813), (227, 94458), (273, 78542), (346, 61971), (454, 47229), (519, 41314), (546, 39271), (681, 31486), (1038, 20657), (1211, 17706), (1362, 15743), (1589, 13494), (2249, 9534), (2422, 8853), (2951, 7266), (3178, 6747), (3633, 5902), (4498, 4767)]