21290094

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{151}}^1\times {\mathrm{373}}^1$

素因数の和:542

約数の個数: 64

約数和(自身を含む): 54574080

約数和(自身を除く): 33283986

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 151, 189, 302, 373, 378, 453, 746, 906, 1057, 1119, 1359, 2114, 2238, 2611, 2718, 3171, 3357, 4077, 5222, 6342, 6714, 7833, 8154, 9513, 10071, 15666, 19026, 20142, 23499, 28539, 46998, 56323, 57078, 70497, 112646, 140994, 168969, 337938, 394261, 506907, 788522, 1013814, 1182783, 1520721, 2365566, 3041442, 3548349, 7096698, 10645047, 21290094]

約数ペア:

[(1, 21290094), (2, 10645047), (3, 7096698), (6, 3548349), (7, 3041442), (9, 2365566), (14, 1520721), (18, 1182783), (21, 1013814), (27, 788522), (42, 506907), (54, 394261), (63, 337938), (126, 168969), (151, 140994), (189, 112646), (302, 70497), (373, 57078), (378, 56323), (453, 46998), (746, 28539), (906, 23499), (1057, 20142), (1119, 19026), (1359, 15666), (2114, 10071), (2238, 9513), (2611, 8154), (2718, 7833), (3171, 6714), (3357, 6342), (4077, 5222)]