21566636

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{331}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 46851840

約数和(自身を除く): 25285204

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 179, 182, 331, 358, 364, 662, 716, 1253, 1324, 2317, 2327, 2506, 4303, 4634, 4654, 5012, 8606, 9268, 9308, 16289, 17212, 30121, 32578, 59249, 60242, 65156, 118498, 120484, 236996, 414743, 770237, 829486, 1540474, 1658972, 3080948, 5391659, 10783318, 21566636]

約数ペア:

[(1, 21566636), (2, 10783318), (4, 5391659), (7, 3080948), (13, 1658972), (14, 1540474), (26, 829486), (28, 770237), (52, 414743), (91, 236996), (179, 120484), (182, 118498), (331, 65156), (358, 60242), (364, 59249), (662, 32578), (716, 30121), (1253, 17212), (1324, 16289), (2317, 9308), (2327, 9268), (2506, 8606), (4303, 5012), (4634, 4654)]