21874356

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1423}}^1$

素因数の和:1501

約数の個数: 72

約数和(自身を含む): 64273664

約数和(自身を除く): 42399308

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 61, 63, 84, 122, 126, 183, 244, 252, 366, 427, 549, 732, 854, 1098, 1281, 1423, 1708, 2196, 2562, 2846, 3843, 4269, 5124, 5692, 7686, 8538, 9961, 12807, 15372, 17076, 19922, 25614, 29883, 39844, 51228, 59766, 86803, 89649, 119532, 173606, 179298, 260409, 347212, 358596, 520818, 607621, 781227, 1041636, 1215242, 1562454, 1822863, 2430484, 3124908, 3645726, 5468589, 7291452, 10937178, 21874356]

約数ペア:

[(1, 21874356), (2, 10937178), (3, 7291452), (4, 5468589), (6, 3645726), (7, 3124908), (9, 2430484), (12, 1822863), (14, 1562454), (18, 1215242), (21, 1041636), (28, 781227), (36, 607621), (42, 520818), (61, 358596), (63, 347212), (84, 260409), (122, 179298), (126, 173606), (183, 119532), (244, 89649), (252, 86803), (366, 59766), (427, 51228), (549, 39844), (732, 29883), (854, 25614), (1098, 19922), (1281, 17076), (1423, 15372), (1708, 12807), (2196, 9961), (2562, 8538), (2846, 7686), (3843, 5692), (4269, 5124)]