21492997204

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{397}}^1\times {\mathrm{6737}}^1$

素因数の和:7193

約数の個数: 72

約数和(自身を含む): 44940330792

約数和(自身を除く): 23447333588

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 397, 574, 794, 1148, 1588, 2009, 2779, 4018, 5558, 6737, 8036, 11116, 13474, 16277, 19453, 26948, 32554, 38906, 47159, 65108, 77812, 94318, 113939, 188636, 227878, 276217, 330113, 455756, 552434, 660226, 797573, 1104868, 1320452, 1595146, 1933519, 2674589, 3190292, 3867038, 5349178, 7734076, 10698356, 13534633, 18722123, 27069266, 37444246, 54138532, 74888492, 109658149, 131054861, 219316298, 262109722, 438632596, 524219444, 767607043, 1535214086, 3070428172, 5373249301, 10746498602, 21492997204]

約数ペア:

[(1, 21492997204), (2, 10746498602), (4, 5373249301), (7, 3070428172), (14, 1535214086), (28, 767607043), (41, 524219444), (49, 438632596), (82, 262109722), (98, 219316298), (164, 131054861), (196, 109658149), (287, 74888492), (397, 54138532), (574, 37444246), (794, 27069266), (1148, 18722123), (1588, 13534633), (2009, 10698356), (2779, 7734076), (4018, 5349178), (5558, 3867038), (6737, 3190292), (8036, 2674589), (11116, 1933519), (13474, 1595146), (16277, 1320452), (19453, 1104868), (26948, 797573), (32554, 660226), (38906, 552434), (47159, 455756), (65108, 330113), (77812, 276217), (94318, 227878), (113939, 188636)]