21214140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2699}}^1$

素因数の和:2842

約数の個数: 48

約数和(自身を含む): 59875200

約数和(自身を除く): 38661060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 2699, 3930, 5398, 7860, 8097, 10796, 13495, 16194, 26990, 32388, 40485, 53980, 80970, 161940, 353569, 707138, 1060707, 1414276, 1767845, 2121414, 3535690, 4242828, 5303535, 7071380, 10607070, 21214140]

約数ペア:

[(1, 21214140), (2, 10607070), (3, 7071380), (4, 5303535), (5, 4242828), (6, 3535690), (10, 2121414), (12, 1767845), (15, 1414276), (20, 1060707), (30, 707138), (60, 353569), (131, 161940), (262, 80970), (393, 53980), (524, 40485), (655, 32388), (786, 26990), (1310, 16194), (1572, 13495), (1965, 10796), (2620, 8097), (2699, 7860), (3930, 5398)]