21696240

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{90401}}^1$

素因数の和:90417

約数の個数: 40

約数和(自身を含む): 67259088

約数和(自身を除く): 45562848

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240, 90401, 180802, 271203, 361604, 452005, 542406, 723208, 904010, 1084812, 1356015, 1446416, 1808020, 2169624, 2712030, 3616040, 4339248, 5424060, 7232080, 10848120, 21696240]

約数ペア:

[(1, 21696240), (2, 10848120), (3, 7232080), (4, 5424060), (5, 4339248), (6, 3616040), (8, 2712030), (10, 2169624), (12, 1808020), (15, 1446416), (16, 1356015), (20, 1084812), (24, 904010), (30, 723208), (40, 542406), (48, 452005), (60, 361604), (80, 271203), (120, 180802), (240, 90401)]