16921040

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{6823}}^1$

素因数の和:6867

約数の個数: 40

約数和(自身を含む): 40616448

約数和(自身を除く): 23695408

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 6823, 13646, 27292, 34115, 54584, 68230, 109168, 136460, 211513, 272920, 423026, 545840, 846052, 1057565, 1692104, 2115130, 3384208, 4230260, 8460520, 16921040]

約数ペア:

[(1, 16921040), (2, 8460520), (4, 4230260), (5, 3384208), (8, 2115130), (10, 1692104), (16, 1057565), (20, 846052), (31, 545840), (40, 423026), (62, 272920), (80, 211513), (124, 136460), (155, 109168), (248, 68230), (310, 54584), (496, 34115), (620, 27292), (1240, 13646), (2480, 6823)]