21193740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6197}}^1$

素因数の和:6231

約数の個数: 72

約数和(自身を含む): 67682160

約数和(自身を除く): 46488420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420, 6197, 12394, 18591, 24788, 30985, 37182, 55773, 61970, 74364, 92955, 111546, 117743, 123940, 185910, 223092, 235486, 278865, 353229, 371820, 470972, 557730, 588715, 706458, 1059687, 1115460, 1177430, 1412916, 1766145, 2119374, 2354860, 3532290, 4238748, 5298435, 7064580, 10596870, 21193740]

約数ペア:

[(1, 21193740), (2, 10596870), (3, 7064580), (4, 5298435), (5, 4238748), (6, 3532290), (9, 2354860), (10, 2119374), (12, 1766145), (15, 1412916), (18, 1177430), (19, 1115460), (20, 1059687), (30, 706458), (36, 588715), (38, 557730), (45, 470972), (57, 371820), (60, 353229), (76, 278865), (90, 235486), (95, 223092), (114, 185910), (171, 123940), (180, 117743), (190, 111546), (228, 92955), (285, 74364), (342, 61970), (380, 55773), (570, 37182), (684, 30985), (855, 24788), (1140, 18591), (1710, 12394), (3420, 6197)]