21359856

素因数分解:

$2^4\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{421}}^1$

素因数の和:590

約数の個数: 80

約数和(自身を含む): 63630848

約数和(自身を除く): 42270992

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 42, 48, 56, 84, 112, 151, 168, 302, 336, 421, 453, 604, 842, 906, 1057, 1208, 1263, 1684, 1812, 2114, 2416, 2526, 2947, 3171, 3368, 3624, 4228, 5052, 5894, 6342, 6736, 7248, 8456, 8841, 10104, 11788, 12684, 16912, 17682, 20208, 23576, 25368, 35364, 47152, 50736, 63571, 70728, 127142, 141456, 190713, 254284, 381426, 444997, 508568, 762852, 889994, 1017136, 1334991, 1525704, 1779988, 2669982, 3051408, 3559976, 5339964, 7119952, 10679928, 21359856]

約数ペア:

[(1, 21359856), (2, 10679928), (3, 7119952), (4, 5339964), (6, 3559976), (7, 3051408), (8, 2669982), (12, 1779988), (14, 1525704), (16, 1334991), (21, 1017136), (24, 889994), (28, 762852), (42, 508568), (48, 444997), (56, 381426), (84, 254284), (112, 190713), (151, 141456), (168, 127142), (302, 70728), (336, 63571), (421, 50736), (453, 47152), (604, 35364), (842, 25368), (906, 23576), (1057, 20208), (1208, 17682), (1263, 16912), (1684, 12684), (1812, 11788), (2114, 10104), (2416, 8841), (2526, 8456), (2947, 7248), (3171, 6736), (3368, 6342), (3624, 5894), (4228, 5052)]