21241908

素因数分解:

$2^2\times 3^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{569}}^1$

素因数の和:657

約数の個数: 72

約数和(自身を含む): 57886920

約数和(自身を除く): 36645012

約数列:

[1, 2, 3, 4, 6, 9, 12, 17, 18, 34, 36, 51, 61, 68, 102, 122, 153, 183, 204, 244, 306, 366, 549, 569, 612, 732, 1037, 1098, 1138, 1707, 2074, 2196, 2276, 3111, 3414, 4148, 5121, 6222, 6828, 9333, 9673, 10242, 12444, 18666, 19346, 20484, 29019, 34709, 37332, 38692, 58038, 69418, 87057, 104127, 116076, 138836, 174114, 208254, 312381, 348228, 416508, 590053, 624762, 1180106, 1249524, 1770159, 2360212, 3540318, 5310477, 7080636, 10620954, 21241908]

約数ペア:

[(1, 21241908), (2, 10620954), (3, 7080636), (4, 5310477), (6, 3540318), (9, 2360212), (12, 1770159), (17, 1249524), (18, 1180106), (34, 624762), (36, 590053), (51, 416508), (61, 348228), (68, 312381), (102, 208254), (122, 174114), (153, 138836), (183, 116076), (204, 104127), (244, 87057), (306, 69418), (366, 58038), (549, 38692), (569, 37332), (612, 34709), (732, 29019), (1037, 20484), (1098, 19346), (1138, 18666), (1707, 12444), (2074, 10242), (2196, 9673), (2276, 9333), (3111, 6828), (3414, 6222), (4148, 5121)]