21000918150

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{683}}^1\times {\mathrm{68329}}^1$

素因数の和:69030

約数の個数: 72

約数和(自身を含む): 56505903480

約数和(自身を除く): 35504985330

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 225, 450, 683, 1366, 2049, 3415, 4098, 6147, 6830, 10245, 12294, 17075, 20490, 30735, 34150, 51225, 61470, 68329, 102450, 136658, 153675, 204987, 307350, 341645, 409974, 614961, 683290, 1024935, 1229922, 1708225, 2049870, 3074805, 3416450, 5124675, 6149610, 10249350, 15374025, 30748050, 46668707, 93337414, 140006121, 233343535, 280012242, 420018363, 466687070, 700030605, 840036726, 1166717675, 1400061210, 2100091815, 2333435350, 3500153025, 4200183630, 7000306050, 10500459075, 21000918150]

約数ペア:

[(1, 21000918150), (2, 10500459075), (3, 7000306050), (5, 4200183630), (6, 3500153025), (9, 2333435350), (10, 2100091815), (15, 1400061210), (18, 1166717675), (25, 840036726), (30, 700030605), (45, 466687070), (50, 420018363), (75, 280012242), (90, 233343535), (150, 140006121), (225, 93337414), (450, 46668707), (683, 30748050), (1366, 15374025), (2049, 10249350), (3415, 6149610), (4098, 5124675), (6147, 3416450), (6830, 3074805), (10245, 2049870), (12294, 1708225), (17075, 1229922), (20490, 1024935), (30735, 683290), (34150, 614961), (51225, 409974), (61470, 341645), (68329, 307350), (102450, 204987), (136658, 153675)]