21888204

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{251}}^1$

素因数の和:327

約数の個数: 72

約数和(自身を含む): 56814912

約数和(自身を除く): 34926708

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 43, 52, 78, 86, 129, 156, 169, 172, 251, 258, 338, 502, 507, 516, 559, 676, 753, 1004, 1014, 1118, 1506, 1677, 2028, 2236, 3012, 3263, 3354, 6526, 6708, 7267, 9789, 10793, 13052, 14534, 19578, 21586, 21801, 29068, 32379, 39156, 42419, 43172, 43602, 64758, 84838, 87204, 127257, 129516, 140309, 169676, 254514, 280618, 420927, 509028, 561236, 841854, 1683708, 1824017, 3648034, 5472051, 7296068, 10944102, 21888204]

約数ペア:

[(1, 21888204), (2, 10944102), (3, 7296068), (4, 5472051), (6, 3648034), (12, 1824017), (13, 1683708), (26, 841854), (39, 561236), (43, 509028), (52, 420927), (78, 280618), (86, 254514), (129, 169676), (156, 140309), (169, 129516), (172, 127257), (251, 87204), (258, 84838), (338, 64758), (502, 43602), (507, 43172), (516, 42419), (559, 39156), (676, 32379), (753, 29068), (1004, 21801), (1014, 21586), (1118, 19578), (1506, 14534), (1677, 13052), (2028, 10793), (2236, 9789), (3012, 7267), (3263, 6708), (3354, 6526)]