21963420

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{457}}^1$

素因数の和:564

約数の個数: 96

約数和(自身を含む): 69249600

約数和(自身を除く): 47286180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 89, 90, 108, 135, 178, 180, 267, 270, 356, 445, 457, 534, 540, 801, 890, 914, 1068, 1335, 1371, 1602, 1780, 1828, 2285, 2403, 2670, 2742, 3204, 4005, 4113, 4570, 4806, 5340, 5484, 6855, 8010, 8226, 9140, 9612, 12015, 12339, 13710, 16020, 16452, 20565, 24030, 24678, 27420, 40673, 41130, 48060, 49356, 61695, 81346, 82260, 122019, 123390, 162692, 203365, 244038, 246780, 366057, 406730, 488076, 610095, 732114, 813460, 1098171, 1220190, 1464228, 1830285, 2196342, 2440380, 3660570, 4392684, 5490855, 7321140, 10981710, 21963420]

約数ペア:

[(1, 21963420), (2, 10981710), (3, 7321140), (4, 5490855), (5, 4392684), (6, 3660570), (9, 2440380), (10, 2196342), (12, 1830285), (15, 1464228), (18, 1220190), (20, 1098171), (27, 813460), (30, 732114), (36, 610095), (45, 488076), (54, 406730), (60, 366057), (89, 246780), (90, 244038), (108, 203365), (135, 162692), (178, 123390), (180, 122019), (267, 82260), (270, 81346), (356, 61695), (445, 49356), (457, 48060), (534, 41130), (540, 40673), (801, 27420), (890, 24678), (914, 24030), (1068, 20565), (1335, 16452), (1371, 16020), (1602, 13710), (1780, 12339), (1828, 12015), (2285, 9612), (2403, 9140), (2670, 8226), (2742, 8010), (3204, 6855), (4005, 5484), (4113, 5340), (4570, 4806)]