21748636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{401}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 47275200

約数和(自身を除く): 25526564

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 149, 182, 298, 364, 401, 596, 802, 1043, 1604, 1937, 2086, 2807, 3874, 4172, 5213, 5614, 7748, 10426, 11228, 13559, 20852, 27118, 36491, 54236, 59749, 72982, 119498, 145964, 238996, 418243, 776737, 836486, 1553474, 1672972, 3106948, 5437159, 10874318, 21748636]

約数ペア:

[(1, 21748636), (2, 10874318), (4, 5437159), (7, 3106948), (13, 1672972), (14, 1553474), (26, 836486), (28, 776737), (52, 418243), (91, 238996), (149, 145964), (182, 119498), (298, 72982), (364, 59749), (401, 54236), (596, 36491), (802, 27118), (1043, 20852), (1604, 13559), (1937, 11228), (2086, 10426), (2807, 7748), (3874, 5614), (4172, 5213)]