21482890

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{181}}^1$

素因数の和:295

約数の個数: 64

約数和(自身を含む): 46230912

約数和(自身を除く): 24748022

約数列:

[1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 83, 110, 130, 143, 166, 181, 286, 362, 415, 715, 830, 905, 913, 1079, 1430, 1810, 1826, 1991, 2158, 2353, 3982, 4565, 4706, 5395, 9130, 9955, 10790, 11765, 11869, 15023, 19910, 23530, 23738, 25883, 30046, 51766, 59345, 75115, 118690, 129415, 150230, 165253, 195299, 258830, 330506, 390598, 826265, 976495, 1652530, 1952990, 2148289, 4296578, 10741445, 21482890]

約数ペア:

[(1, 21482890), (2, 10741445), (5, 4296578), (10, 2148289), (11, 1952990), (13, 1652530), (22, 976495), (26, 826265), (55, 390598), (65, 330506), (83, 258830), (110, 195299), (130, 165253), (143, 150230), (166, 129415), (181, 118690), (286, 75115), (362, 59345), (415, 51766), (715, 30046), (830, 25883), (905, 23738), (913, 23530), (1079, 19910), (1430, 15023), (1810, 11869), (1826, 11765), (1991, 10790), (2158, 9955), (2353, 9130), (3982, 5395), (4565, 4706)]