21307416

素因数分解:

$2^3\times 3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2203}}^1$

素因数の和:2256

約数の個数: 64

約数和(自身を含む): 59243520

約数和(自身を除く): 37936104

約数列:

[1, 2, 3, 4, 6, 8, 12, 13, 24, 26, 31, 39, 52, 62, 78, 93, 104, 124, 156, 186, 248, 312, 372, 403, 744, 806, 1209, 1612, 2203, 2418, 3224, 4406, 4836, 6609, 8812, 9672, 13218, 17624, 26436, 28639, 52872, 57278, 68293, 85917, 114556, 136586, 171834, 204879, 229112, 273172, 343668, 409758, 546344, 687336, 819516, 887809, 1639032, 1775618, 2663427, 3551236, 5326854, 7102472, 10653708, 21307416]

約数ペア:

[(1, 21307416), (2, 10653708), (3, 7102472), (4, 5326854), (6, 3551236), (8, 2663427), (12, 1775618), (13, 1639032), (24, 887809), (26, 819516), (31, 687336), (39, 546344), (52, 409758), (62, 343668), (78, 273172), (93, 229112), (104, 204879), (124, 171834), (156, 136586), (186, 114556), (248, 85917), (312, 68293), (372, 57278), (403, 52872), (744, 28639), (806, 26436), (1209, 17624), (1612, 13218), (2203, 9672), (2418, 8812), (3224, 6609), (4406, 4836)]