21032648

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{173}}^1$

素因数の和:366

約数の個数: 64

約数和(自身を含む): 49109760

約数和(自身を除く): 28077112

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 167, 173, 182, 334, 346, 364, 668, 692, 728, 1169, 1211, 1336, 1384, 2171, 2249, 2338, 2422, 4342, 4498, 4676, 4844, 8684, 8996, 9352, 9688, 15197, 15743, 17368, 17992, 28891, 30394, 31486, 57782, 60788, 62972, 115564, 121576, 125944, 202237, 231128, 375583, 404474, 751166, 808948, 1502332, 1617896, 2629081, 3004664, 5258162, 10516324, 21032648]

約数ペア:

[(1, 21032648), (2, 10516324), (4, 5258162), (7, 3004664), (8, 2629081), (13, 1617896), (14, 1502332), (26, 808948), (28, 751166), (52, 404474), (56, 375583), (91, 231128), (104, 202237), (167, 125944), (173, 121576), (182, 115564), (334, 62972), (346, 60788), (364, 57782), (668, 31486), (692, 30394), (728, 28891), (1169, 17992), (1211, 17368), (1336, 15743), (1384, 15197), (2171, 9688), (2249, 9352), (2338, 8996), (2422, 8684), (4342, 4844), (4498, 4676)]