21033532

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{349}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 42532000

約数和(自身を除く): 21498468

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 61, 76, 122, 244, 247, 349, 494, 698, 793, 988, 1159, 1396, 1586, 2318, 3172, 4537, 4636, 6631, 9074, 13262, 15067, 18148, 21289, 26524, 30134, 42578, 60268, 85156, 86203, 172406, 276757, 344812, 404491, 553514, 808982, 1107028, 1617964, 5258383, 10516766, 21033532]

約数ペア:

[(1, 21033532), (2, 10516766), (4, 5258383), (13, 1617964), (19, 1107028), (26, 808982), (38, 553514), (52, 404491), (61, 344812), (76, 276757), (122, 172406), (244, 86203), (247, 85156), (349, 60268), (494, 42578), (698, 30134), (793, 26524), (988, 21289), (1159, 18148), (1396, 15067), (1586, 13262), (2318, 9074), (3172, 6631), (4537, 4636)]