21373860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18749}}^1$

素因数の和:18780

約数の個数: 48

約数和(自身を含む): 63000000

約数和(自身を除く): 41626140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 18749, 37498, 56247, 74996, 93745, 112494, 187490, 224988, 281235, 356231, 374980, 562470, 712462, 1068693, 1124940, 1424924, 1781155, 2137386, 3562310, 4274772, 5343465, 7124620, 10686930, 21373860]

約数ペア:

[(1, 21373860), (2, 10686930), (3, 7124620), (4, 5343465), (5, 4274772), (6, 3562310), (10, 2137386), (12, 1781155), (15, 1424924), (19, 1124940), (20, 1068693), (30, 712462), (38, 562470), (57, 374980), (60, 356231), (76, 281235), (95, 224988), (114, 187490), (190, 112494), (228, 93745), (285, 74996), (380, 56247), (570, 37498), (1140, 18749)]