21447390

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{191}}^1\times {\mathrm{197}}^1$

素因数の和:417

約数の個数: 64

約数和(自身を含む): 54743040

約数和(自身を除く): 33295650

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 191, 197, 285, 382, 394, 570, 573, 591, 955, 985, 1146, 1182, 1910, 1970, 2865, 2955, 3629, 3743, 5730, 5910, 7258, 7486, 10887, 11229, 18145, 18715, 21774, 22458, 36290, 37430, 37627, 54435, 56145, 75254, 108870, 112290, 112881, 188135, 225762, 376270, 564405, 714913, 1128810, 1429826, 2144739, 3574565, 4289478, 7149130, 10723695, 21447390]

約数ペア:

[(1, 21447390), (2, 10723695), (3, 7149130), (5, 4289478), (6, 3574565), (10, 2144739), (15, 1429826), (19, 1128810), (30, 714913), (38, 564405), (57, 376270), (95, 225762), (114, 188135), (190, 112881), (191, 112290), (197, 108870), (285, 75254), (382, 56145), (394, 54435), (570, 37627), (573, 37430), (591, 36290), (955, 22458), (985, 21774), (1146, 18715), (1182, 18145), (1910, 11229), (1970, 10887), (2865, 7486), (2955, 7258), (3629, 5910), (3743, 5730)]