21275300

素因数分解:

$2^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{6863}}^1$

素因数の和:6908

約数の個数: 36

約数和(自身を含む): 47663616

約数和(自身を除く): 26388316

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 620, 775, 1550, 3100, 6863, 13726, 27452, 34315, 68630, 137260, 171575, 212753, 343150, 425506, 686300, 851012, 1063765, 2127530, 4255060, 5318825, 10637650, 21275300]

約数ペア:

[(1, 21275300), (2, 10637650), (4, 5318825), (5, 4255060), (10, 2127530), (20, 1063765), (25, 851012), (31, 686300), (50, 425506), (62, 343150), (100, 212753), (124, 171575), (155, 137260), (310, 68630), (620, 34315), (775, 27452), (1550, 13726), (3100, 6863)]