21370291155

素因数分解:

$3^5\times 5^1\times {\mathrm{3313}}^1\times {\mathrm{5309}}^1$

素因数の和:8642

約数の個数: 48

約数和(自身を含む): 38432590560

約数和(自身を除く): 17062299405

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 243, 405, 1215, 3313, 5309, 9939, 15927, 16565, 26545, 29817, 47781, 49695, 79635, 89451, 143343, 149085, 238905, 268353, 430029, 447255, 716715, 805059, 1290087, 1341765, 2150145, 4025295, 6450435, 17588717, 52766151, 87943585, 158298453, 263830755, 474895359, 791492265, 1424686077, 2374476795, 4274058231, 7123430385, 21370291155]

約数ペア:

[(1, 21370291155), (3, 7123430385), (5, 4274058231), (9, 2374476795), (15, 1424686077), (27, 791492265), (45, 474895359), (81, 263830755), (135, 158298453), (243, 87943585), (405, 52766151), (1215, 17588717), (3313, 6450435), (5309, 4025295), (9939, 2150145), (15927, 1341765), (16565, 1290087), (26545, 805059), (29817, 716715), (47781, 447255), (49695, 430029), (79635, 268353), (89451, 238905), (143343, 149085)]